I was once a fortunate man but at some point fortune abandoned me. But true good fortune is what you make for yourself. Good fortune: good character, good intentions, and good actions.

Since it is possible that thou mayest depart from life this very moment, regulate every act and thought accordingly. But to go away from among men, if there are gods, is not a thing to be afraid of, for the gods will not involve thee in evil; but if indeed they do not exist, or if they have no concern about human affairs, what is it to me to live in a universe devoid of gods or devoid of Providence? But Gods there are, undoubtedly, and they regard human affairs; and have put it wholly in our power, that we should not fall into what is truly evil.

The wrongdoer is often the person who left something undone, rather than the person who has done something

Wilt thou, then, my soul, never be good and simple and one and naked, more manifest than the body which surrounds thee?

I search after truth, by which man never yet was harmed.

The honest and good man ought to be exactly like a man who smells strong, so that the bystander as soon as he comes near him must smell whether he choose or not.

Live with the gods. And he does so who constantly shows them that his soul is satisfied with what is assigned to him.